MapFieldReplace (JSimpleDB Main Classes 2.1.2 API)

java.lang.Object
- org.jsimpledb.change.Change<T>
- - org.jsimpledb.change.FieldChange<T>
  - - org.jsimpledb.change.MapFieldChange<T>
    - - org.jsimpledb.change.MapFieldReplace<T,K,V>

Type Parameters:
T - the type of the object containing the changed field
K - the type of the changed map's key
V - the type of the changed map's value
```
public class MapFieldReplace<T,K,V>
extends MapFieldChange<T>
```
Notification object that gets passed to @OnChange-annotated methods when the value in a key/value pair is replaced with a new value.

Constructor Summary

Constructors
Constructor and Description
`MapFieldReplace(T jobj, int storageId, String fieldName, K key, V oldValue, V newValue)` Constructor.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`apply(JTransaction jtx, JObject jobj)` Apply this change to the given object in the given transaction.
`boolean`	`equals(Object obj)`
`K`	`getKey()` Get the key of the key/value pair whose value was replaced.
`V`	`getNewValue()` Get the value of the key/value pair after the change.
`V`	`getOldValue()` Get the value of the key/value pair before the change.
`int`	`hashCode()`
`String`	`toString()`
`<R> R`	`visit(ChangeSwitch<R> target)` Apply visitor pattern.

Methods inherited from class org.jsimpledb.change.FieldChange
getFieldName, getStorageId

Methods inherited from class org.jsimpledb.change.Change
apply, apply, apply, getJObject, getObject

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - MapFieldReplace
```
public MapFieldReplace(T jobj,
               int storageId,
               String fieldName,
               K key,
               V oldValue,
               V newValue)
```
    Constructor.
    
    Parameters:
    jobj - Java object containing the map field that changed
    storageId - the storage ID of the affected field
    fieldName - the name of the field that changed
    key - the key whose value was changed
    oldValue - the old value associated with key
    newValue - the new value associated with key
    
    Throws:
    
    IllegalArgumentException - if jobj or fieldName is null
- Method Detail
  - visit
```
public <R> R visit(ChangeSwitch<R> target)
```
    Description copied from class: Change
    
    Apply visitor pattern. Invokes the method of target corresponding to this instance's type.
    
    Specified by:
    
    visit in class Change<T>
    
    Type Parameters:
    R - visitor return type
    Parameters:
    target - visitor pattern target
    
    Returns:
    value returned by the selected method of target
  - apply
```
public void apply(JTransaction jtx,
         JObject jobj)
```
    Description copied from class: Change
    
    Apply this change to the given object in the given transaction.
    
    Specified by:
    
    apply in class Change<T>
    
    Parameters:
    jtx - the transaction in which to apply this change
    jobj - the target object to which to apply this change
  - getKey
```
public K getKey()
```
    Get the key of the key/value pair whose value was replaced.
    
    Returns:
    the key of the replaced value
  - getOldValue
```
public V getOldValue()
```
    Get the value of the key/value pair before the change.
    
    Returns:
    the replaced value
  - getNewValue
```
public V getNewValue()
```
    Get the value of the key/value pair after the change.
    
    Returns:
    the replacing value
  - equals
```
public boolean equals(Object obj)
```
    Overrides:
    
    equals in class FieldChange<T>
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class FieldChange<T>
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class MapFieldReplace<T,K,V>

Constructor Summary

Method Summary

Methods inherited from class org.jsimpledb.change.FieldChange

Methods inherited from class org.jsimpledb.change.Change

Methods inherited from class java.lang.Object

Constructor Detail

MapFieldReplace

Method Detail

visit

apply

getKey

getOldValue

getNewValue

equals

hashCode

toString